as has been already pointed out somewhere on this thread, the time which we have before we completely fuck up our home is much shorter than the presumed cosmic catastrophe/span of the sun's glow (what is it, 3 billion years from now?)

the sad argument that we 'need space right now due to the earth running out of time' is politician rubbish, or nasa asking for yet more cash. another case of instilling fear in the minds of citizens whilst drawing their minds away from the problems here and now, which politicians surely don't care about

in any case, the planet will be here for quite a long time in cosmic terms whatever happens meteor-wise or environmental-wise - we won't, possibly, or at least not those of the wealthier breed